Correct the display of Polyhedrons.
Handle Polyhedron. Remove useless attribute.
Use submodule for examples and unit tests.
Use my version of sch-core.
Use astyle.

astyle --recursive --style=allman --lineend=linux --indent=spaces=2 --indent-namespaces ./*.cpp*
Disable the unit tests, useless on travis
Merge pull request #1 from francois-keith/master

Use the jrl-travis submodule to simplify the use of travis.